2021587875

素因数分解:

$3^4\times 5^3\times {\mathrm{23}}^1\times {\mathrm{8681}}^1$

素因数の和:8731

約数の個数: 80

約数和(自身を含む): 3933154368

約数和(自身を除く): 1911566493

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 81, 115, 125, 135, 207, 225, 345, 375, 405, 575, 621, 675, 1035, 1125, 1725, 1863, 2025, 2875, 3105, 3375, 5175, 8625, 8681, 9315, 10125, 15525, 25875, 26043, 43405, 46575, 77625, 78129, 130215, 199663, 217025, 232875, 234387, 390645, 598989, 651075, 703161, 998315, 1085125, 1171935, 1796967, 1953225, 2994945, 3255375, 3515805, 4991575, 5390901, 5859675, 8984835, 9766125, 14974725, 16172703, 17579025, 24957875, 26954505, 29298375, 44924175, 74873625, 80863515, 87895125, 134772525, 224620875, 404317575, 673862625, 2021587875]

約数ペア:

[(1, 2021587875), (3, 673862625), (5, 404317575), (9, 224620875), (15, 134772525), (23, 87895125), (25, 80863515), (27, 74873625), (45, 44924175), (69, 29298375), (75, 26954505), (81, 24957875), (115, 17579025), (125, 16172703), (135, 14974725), (207, 9766125), (225, 8984835), (345, 5859675), (375, 5390901), (405, 4991575), (575, 3515805), (621, 3255375), (675, 2994945), (1035, 1953225), (1125, 1796967), (1725, 1171935), (1863, 1085125), (2025, 998315), (2875, 703161), (3105, 651075), (3375, 598989), (5175, 390645), (8625, 234387), (8681, 232875), (9315, 217025), (10125, 199663), (15525, 130215), (25875, 78129), (26043, 77625), (43405, 46575)]